What To Do With Leftover Walnuts

Leftover walnuts can be used in plenty of creative ways instead of letting them go stale in your pantry.
 
Whether you have a small handful or a big bag that’s nearing its expiration date, there’s no shortage of things you can do with leftover walnuts.
 
These nuts are incredibly versatile, and knowing what to do with leftover walnuts means you’ll never waste a single one again.
 
In this post, we’ll explore some of the best things to do with leftover walnuts, from simple kitchen tricks to clever household uses.
 
Let’s dive in.
 

What to Do with Leftover Walnuts in the Kitchen

The kitchen is the most obvious place to start when you’re figuring out what to do with leftover walnuts.
 
Here are some tasty ways to put them to good use:
 

1. Toast Them for a Flavor Boost

One of the easiest things to do with leftover walnuts is to toast them.
 
Toasting brings out their natural oils and gives them a richer, nuttier flavor that works in almost any dish.
 
Spread them on a baking sheet and pop them in a 350°F oven for about 8 to 10 minutes.
 
Once toasted, you can use them as a topping for salads, yogurt, oatmeal, or even ice cream.
 

2. Blend Them into Pesto or Sauces

If you’re wondering what to do with leftover walnuts beyond snacking, try blending them into a pesto.
 
Walnuts make a fantastic substitute for pine nuts in traditional pesto recipes.
 
Just pulse them with basil, garlic, parmesan, and olive oil for a delicious sauce.
 
You can also blend leftover walnuts into creamy sauces or soups to add richness and depth.
 

3. Bake Them into Breads and Desserts

Baking is another great option when you have leftover walnuts to use up.
 
Toss them into banana bread, brownies, cookies, or muffins for a satisfying crunch.
 
You can also make a simple walnut tart or sprinkle them over a fruit crumble.
 
The options are endless, and baked goods are a perfect way to use up a larger batch of leftover walnuts.
 

4. Make Walnut Butter

Homemade walnut butter is one of the most rewarding things to do with leftover walnuts.
 
Simply roast the walnuts, then blend them in a food processor until smooth and creamy.
 
Add a pinch of salt or a drizzle of honey for extra flavor.
 
Spread it on toast, swirl it into oatmeal, or use it as a dip for apple slices.
 

Creative Uses for Leftover Walnuts Beyond Cooking

Leftover walnuts aren’t just for eating.
 
There are plenty of non-culinary ways to use them too.
 

1. Use Them in Natural Cleaning Scrubs

Ground walnut shells are a popular ingredient in natural exfoliating scrubs.
 
If you have a coffee grinder, you can pulse leftover walnuts into a fine powder and mix them with coconut oil and sugar.
 
This makes a gentle, nourishing body scrub that smells amazing.
 

2. Feed Them to Birds or Squirrels

If your leftover walnuts are plain and unsalted, you can offer them to wildlife.
 
Birds and squirrels love walnuts, and scattering a few in your yard is a simple way to use them up.
 
Just make sure they aren’t coated in sugar, salt, or seasoning.
 

3. Compost Them

Walnuts are biodegradable, so composting is a perfectly good answer to what to do with leftover walnuts that are too old to eat.
 
Just break them into smaller pieces to help them break down faster.
 
They’ll add valuable organic matter to your compost pile.
 

How to Store Leftover Walnuts So They Last Longer

Before you decide what to do with leftover walnuts, it helps to store them properly so they stay fresh.
 

1. Keep Them in an Airtight Container

Walnuts absorb odors easily, so an airtight container is a must.
 
Store them in a cool, dark place like your pantry for short-term use.
 

2. Refrigerate for a Few Months

If you won’t use your leftover walnuts right away, pop them in the fridge.
 
They’ll stay fresh for up to six months when kept in a sealed container.
 

3. Freeze for Long-Term Storage

Freezing is the best way to keep leftover walnuts for up to a year.
 
Place them in a freezer-safe bag, squeeze out the air, and label with the date.
 
You can use them straight from the freezer in most recipes.
 

So, What to Do with Leftover Walnuts?

Leftover walnuts can be used in plenty of creative ways instead of letting them go stale in your pantry.
 
From toasting and baking to making walnut butter or even composting, there’s always something you can do with leftover walnuts.
 
With proper storage, you can also keep them fresh for months so you’re never rushed to use them up.
 
Hope this post has helped you figure out what to do with leftover walnuts so nothing goes to waste.